About this item 【Naturally Sourced Materials】 Indeed taken from nature and carefully hand-selected to retain its classic gray tones and unique natural texture, bringing natural beauty to the aquarium. With aggressive grooves and jagged edges, the heavy mass provides stable support and a center of gravity to prevent landscape objects from collapsing or shifting in the aquascape. 【Widely Used in Aquascaping】 Often used as a component of underwater landscapes such as underwater caves, underwater waterfalls, etc. It can also create natural landscapes like rock piles, caverns, and caves. It is also suitable for a forest-style layout on a sandy bottom and the base of the Iwagumi aquascape layout. 【Providing Biological Places】 Created caves, caverns, and rock piles provide safe habitats for fish to feel comfortable and at home. Smaller organisms like copepods and crustaceans can also inhabit the original rock structure. The irregularities and pits on the surface can provide a cover for aquatic plants to attach to, which is conducive to their growth and reproduction. 【Provides Natural Filtration】 There will be beneficial microorganisms on the surface that can help break down waste and residue and help maintain the water quality in the aquarium. The tiny pores on the surface also provide an environment for the reproduction and growth of microorganisms, bacteria, algae, and other organisms in the water. 【Product Specifications】 40L, about 17 pounds, contains 3-11 inches of different sizes and shapes of raw stones. To avoid water contamination, please wash thoroughly before use to remove surface sediment and impurities.
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